Here's the mildly irritating truth of the impending smartwatch era: Your favorite one might give you a skin rash.

That much became clear when Fitbit Force users began posting images of their unsightly rashes on Fitbit's forums last month. The red, blotchy rashes were showing up underneath the area where the Fitbit's battery and charging port reside. One user was diagnosed with contact dermatitis, and may have a permanent scar from the blistering and scabbing that eventually occurred.

Fitbit confirmed to Consumerist that the fitness band's materials could cause a rash for some users, and that those users can either get a refund or exchange the band for a different product. The company says it tests its products to satisfy "a variety of internationally accepted standards" for material safety.